There's really no reason to use Amazon, ever. The search function is a joke, designed to "suggest" what you want to buy instead of finding what you are specifically searching for. AND it's a horrible company.

Learn to use eBay's search with all the filters. You can actually search for the lowest price (including or excluding used items, which are often the best deals), see where the item is located, see how the seller's rating compares to the sellers of somewhat higher priced listings for the same item.

You can limit the search to US only or North America only. You can use quote marks to be very specific about what you're looking for. You can include or exclude the full listing descriptions from your search (default searches listing titles only, but often you can find better options by searching the entire listings). You can set up very detailed saved searches and get notified when one is listed, without getting spammed about a whole bunch of other stuff (I once waited over 2 years for a specific item to be listed, and the first notification I got for that saved search was the right item). And you can communicate directly with sellers both before and after a purchase.

The last time I bought something on Amazon was over 3 years ago. It was an old used book that I wanted to complete my collection of a small, very obscure series, and literally the only listing on the planet for this title was on Amazon, so I held my nose and bought it. But it's extremely rare for anything to be available on Amazon that isn't available on eBay or through specialized platforms (e.g., for books, AddAll or ViaLibri).